Scientific article
English

Direct intracranial recording of body-selective responses in human extrastriate visual cortex

Published inNeuropsychologia, vol. 45, no. 11, p. 2621-2625
Publication date2007
Abstract

We recorded intracranial local field potentials (iLFPs) in right extrastriate visual cortex of a patient prior to surgery for epilepsy. Visual evoked potentials revealed a highly selective response to images of bodies, relative to faces, mammals, and tools, which was restricted to a focal region in the lateral occipitotemporal cortex that corresponds to the location of the extrastriate body area (EBA). Body-selective activity started around 190 ms and peaked 260 ms post-stimulus onset. These findings provide the first direct electrophysiological evidence for an early visual processing stage in human lateral occipitotemporal cortex that is specialized for processing human body shapes.

Keywords
  • Adult
  • Brain Mapping
  • Evoked Potentials, Visual/ physiology
  • Form Perception/ physiology
  • Humans
  • Male
  • Occipital Lobe/ physiology
  • Visual Pathways/ physiology
Research groups
Citation (ISO format)
POURTOIS, Gilles et al. Direct intracranial recording of body-selective responses in human extrastriate visual cortex. In: Neuropsychologia, 2007, vol. 45, n° 11, p. 2621–2625. doi: 10.1016/j.neuropsychologia.2007.04.005
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Journal ISSN0028-3932
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